Electronic cigarette



FIG. 1 is a front view of an electronic cigarette;

FIG. 2 is a bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left view thereof; and,

FIG. 7 is a top, right, rear perspective view thereof.

The broken lines immediately adjacent the shaded lines represent the bounds of the claimed design while all other broken lines in the drawings are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design. 

CLAIM I claim the ornamental design for an electronic cigarette, substantially as shown and described. 